[William Miller]

Are you talking about the fittings on the hard lines? S shape I think on the front and a little longer on the backs.
I replaced these lines on my car during the renovation. The new lines were pretty reasonable price. I may have kept some of the old parts if you need them. I think on some I just cut the metal line and crimped it over and used it as a cap on the caliper untill I rebuilt them and put them back on the car. I usually don't throw stuff like that away since sooner or later someone will need it! Since your changing out your trailing arms are the old lines the same as the new ones?

Let me know how I can help.
Maybe post a picture or cut and paste the Pet diagram to clarify.